CVE-2026-21638 is a high severity vulnerability with a CVSS score of 8.8. No known exploits currently, and patches are available.
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Very low probability of exploitation
EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.
A malicious actor in Wi-Fi range of the affected product could leverage a vulnerability in the airMAX Wireless Protocol to achieve a remote code execution (RCE) within the affected product.
Affected Products: UBB-XG (Version 1.2.2 and earlier) UDB-Pro/UDB-Pro-Sector (Version 1.4.1 and earlier) UBB (Version 3.1.5 and earlier)
Mitigation: Update your UBB-XG to Version 1.2.3 or later. Update your UDB-Pro/UDB-Pro-Sector to Version 1.4.2 or later. Update your UBB to Version 3.1.7 or later.
| Vendor | Product |
|---|---|
| Ui | Ubb Firmware |
| Ui | Ubb Xg Firmware |
| Ui | Udb Pro |
| Ui | Udb Pro Sector Firmware |
| Ui | Ubb Xg |
| Ui | Udb Pro Firmware |
| Ui | Ubb |
| Ui | Udb Pro Sector |